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Title: Top-down mass spectrometry of native proteoforms and their complexes: a community study

Journal Article · · Nature Methods
ORCiD logo [1]; ORCiD logo [2];  [3];  [4]; ORCiD logo [5];  [6];  [6];  [4];  [7]; ORCiD logo [8];  [9];  [10]; ORCiD logo [11];  [12]; ORCiD logo [13]; ORCiD logo [14];  [10]; ORCiD logo [15]; ORCiD logo [7]; ORCiD logo [16] more »;  [8]; ORCiD logo [1] « less
  1. Technische Univ. Darmstadt (Germany)
  2. Univ. of Wisconsin, Madison, WI (United States)
  3. Northwestern Univ., Evanston, IL (United States)
  4. Univ. of California, Los Angeles, CA (United States)
  5. Pacific Northwest National Laboratory (PNNL), Richland, WA (United States); Zhejiang Univ. (China)
  6. Northeastern Univ., Boston, MA (United States)
  7. Univ. of Arizona, Tucson, AZ (United States)
  8. Genentech, San Francisco, CA (United States)
  9. Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
  10. Sun Yat-Sen Univ., Guangzhou (China)
  11. Northeastern Univ., Boston, MA (United States); Consortium for Top-Down Proteomics, Cambridge, MA (United States)
  12. Consortium for Top-Down Proteomics, Cambridge, MA (United States)
  13. Univ. of Wisconsin, Madison, WI (United States); Consortium for Top-Down Proteomics, Cambridge, MA (United States)
  14. Northwestern Univ., Evanston, IL (United States); Consortium for Top-Down Proteomics, Cambridge, MA (United States)
  15. Univ. of California, Los Angeles, CA (United States); Consortium for Top-Down Proteomics, Cambridge, MA (United States)
  16. Pacific Northwest National Laboratory (PNNL), Richland, WA (United States); Consortium for Top-Down Proteomics, Cambridge, MA (United States)

The combination of native electrospray ionization with top-down fragmentation in mass spectrometry (MS) allows simultaneous determination of the stoichiometry of noncovalent complexes and identification of their component proteoforms and cofactors. Although this approach is powerful, both native MS and top-down MS are not yet well standardized, and only a limited number of laboratories regularly carry out this type of research. Further, to address this challenge, the Consortium for Top-Down Proteomics initiated a study to develop and test protocols for native MS combined with top-down fragmentation of proteins and protein complexes across 11 instruments in nine laboratories. Here we report the summary of the outcomes to provide robust benchmarks and a valuable entry point for the scientific community.

Research Organization:
Pacific Northwest National Laboratory (PNNL), Richland, WA (United States). Environmental Molecular Sciences Laboratory (EMSL)
Sponsoring Organization:
USDOE Office of Science (SC), Biological and Environmental Research (BER)
Grant/Contract Number:
AC05-76RL01830; FC02-02ER63421
OSTI ID:
2370126
Report Number(s):
PNNL-SA--189941; {"","Journal ID: ISSN 1548-7091"}
Journal Information:
Nature Methods, Journal Name: Nature Methods Vol. 21; ISSN 1548-7091
Publisher:
Nature Publishing GroupCopyright Statement
Country of Publication:
United States
Language:
English

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